Crankcase oil catcher with movable guide
US-2017350346-A1 · Dec 7, 2017 · US
Oil circulation system of internal combustion engine
US10570787B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10570787-B2 |
| Application number | US-201815991664-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 29, 2018 |
| Priority date | May 31, 2017 |
| Publication date | Feb 25, 2020 |
| Grant date | Feb 25, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The oil circulation system of an internal combustion engine comprises: a high temperature side oil circulation path provided with a high temperature side oil pan, a high temperature side part supplied with oil, and a heating part, and circulating oil among these; a low temperature side oil circulation path provided with a low temperature side oil pan and a low temperature side part supplied with oil, and circulating oil between the low temperature side oil pan and the low temperature side part supplied with oil; an oil transport mechanism transporting oil between the low temperature side oil circulation path and the high temperature side oil circulation path; and a control device configured to control transport of oil by the oil transport mechanism while the internal combustion engine is operating.
First claim
Opening claim text (preview).
The invention claimed is: 1. An oil circulation system of an internal combustion engine comprising: a high temperature side oil circulation path provided with a high temperature side oil pan storing oil, a high temperature side part supplied with oil to which oil in the high temperature side oil pan is supplied, and a heating part heating oil supplied to the high temperature side part supplied with oil, and circulating oil among the high temperature side oil pan, the high temperature side part supplied with oil and the heating part; a low temperature side oil circulation path provided with a low temperature side oil pan storing oil and a low temperature side part supplied with oil to which oil in the low temperature side oil pan is supplied, and circulating oil between the low temperature side oil pan and the low temperature side part supplied with oil; an oil transport mechanism transporting oil between the low temperature side oil circulation path and the high temperature side oil circulation path; a control device configured to control transport of oil by the oil transport mechanism while the internal combustion engine is operating, and a high temperature side oil temperature sensor detecting a temperature of the oil in the high temperature side oil circulation path, wherein the control device is configured to transport oil from the low temperature side oil circulation path to the high temperature side oil circulation path by the oil transport mechanism when the temperature of the oil detected by the high temperature side oil temperature sensor is equal to or greater than a predetermined first temperature; and the high temperature side oil circulation path is configured so that oil circulates through the high temperature side oil pan, the heating part, and the high temperature side part supplied with oil in that order, and the high temperature side oil temperature sensor is provided between the heating part and the high temperature side part supplied with oil. 2. The oil circulation system of an internal combustion engine according to claim 1 , further comprising an environmental temperature sensor detecting an environmental temperature, wherein the high temperature side oil pan and the low temperature side oil pan are configured so that oil in the high temperature side oil pan moves into the low temperature side oil pan when the oil in the high temperature side oil pan becomes equal to or greater than a predetermined amount while the internal combustion engine is operating, and the control device is configured to transport oil from the low temperature side oil circulation path to the high temperature side oil circulation path by the oil transport mechanism if the environmental temperature detected by the environmental temperature sensor is equal to or less than a predetermined second temperature when the internal combustion engine is started up. 3. The oil circulation system of an internal combustion engine according to claim 2 , further comprising a low temperature side oil temperature sensor detecting a temperature of the oil in the low temperature side oil circulation path, wherein the control device is configured to transport oil from the low temperature side oil circulation path to the high temperature side oil circulation path by the oil transport mechanism until the temperature detected by the low temperature side oil temperature sensor reaches a predetermined third temperature if the environmental temperature detected by the environmental temperature sensor is equal to or less than the second temperature when the internal combustion engine is started up. 4. The oil circulation system of an internal combustion engine according to claim 1 , wherein the oil transport mechanism comprises an oil jet ejecting oil toward an inside of a piston provided in the internal combustion engine and, the oil jet is provided at the low temperature side oil circulation path, and the high temperature side oil pan is configured to recover oil ejected by the oil jet.
Assignees
Inventors
Classifications
Oilsumps · CPC title
by heating · CPC title
Oil sump with partition for facilitating heating of oil during starting · CPC title
comprising oil pumps · CPC title
for controlling the oil temperature · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10570787B2 cover?
- The oil circulation system of an internal combustion engine comprises: a high temperature side oil circulation path provided with a high temperature side oil pan, a high temperature side part supplied with oil, and a heating part, and circulating oil among these; a low temperature side oil circulation path provided with a low temperature side oil pan and a low temperature side part supplied wit…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01M5/001. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 25 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).